Yes, it is an Nvidia card. I don't intend on selling it to a miner as it only gets about 15MH/S. It is still a decent gaming card though.
Images can be seen here:
http://imageshack.us/g/832/imag0025jh.jpg/Sorry for the bad lighting, but it gives you an idea of how the card looks. I tried to find something bitcoin related or a pen to write my name but there was nothing around me so if you want more proof I will post one last picture with my name ontop of the card in better lighting.
0.5 btc is a no, shakaru. I'm trying to get rid of it for shits n giggles but the cards still worth more than that.